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公开(公告)号：US20240317642A1
公开(公告)日：2024-09-26
申请号：US18573884
申请日：2022-07-18
发明人： Stephen HARPUR , Ian GRANT , Roger MAH
摘要： A process for producing a pozzolan from a starting material. The starting material is size-reduced and incorporated into an aqueous slurry. The size-reduction can be carried out before or after incorporation into the aqueous slurry. Pressurized gas containing carbon dioxide is supplied to the aqueous slurry, and the aqueous slurry is mixed in the presence of the pressurized gas for a treatment period.
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公开(公告)号：US20180015514A1
公开(公告)日：2018-01-18
申请号：US15553463
申请日：2015-02-26
申请人： MICROPULVA LTD OY
发明人： Risto MANNONEN , Jouko NIEMI
CPC分类号： B09B3/00 , B03B5/28 , B03D1/02 , B09B2220/06 , C04B7/12 , C04B7/427 , C04B7/60 , C04B18/06 , C10L5/447 , C10L2290/54 , Y02W30/92 , C04B20/023
摘要： A method for industrial refining of coal ash created in power plants and carbonaceous ashes produced in other combustion processes by separating coal from said ashes and returning it to use and by recovering a substantially coal-free ash fraction obtained in the refining. In the method, coal ash and at least one ash fraction created by gasification technique in combustion plants are carefully proportioned in relation to one another and formed into a slurry mixture by means of an efficient dispersion technique, the slurry being then led to a flotation step, where a fraction rich in coal and a siliceous fraction poor in coal and a fraction dissolving in the process water are separated by flotation. The coal ash is arranged to have the highest proportion in the mixture to be taken to flotation, the ashes from combustion plants being dosed into said mixture in an amount that does not cause the maximum amounts of harmful substances to be exceeded in the qualities of the carbonaceous product and the silicate product poor in coal to be obtained.
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公开(公告)号：US09695086B2
公开(公告)日：2017-07-04
申请号：US13806297
申请日：2011-06-08
CPC分类号： C04B7/60 , B01D53/508 , B01D53/62 , B01D53/86 , B09B3/0025 , C04B7/436 , F27D17/00 , Y02P10/283
摘要： In accordance with the present invention, there is provided a treat chlorine bypass dust while preventing increases in chemical cost and concentrations of heavy metals in clinker, and ensuring stability in quality of cement. In a chlorine bypass facility 1 extracting a part G of combustion gas, while cooling it, from a kiln exhaust gas passage, which runs from an inlet end of a cement kiln to a bottom cyclone, and recovering a high chlorine concentration chlorine bypass dust D5 from the extracted gas G1, a slurry S containing chlorine bypass dust and SO2 gas or/and CO2 gas are contacted with each other to obtain solid content. The slurry containing chlorine bypass dust and an exhaust gas from the chlorine bypass facility or/and the exhaust gas from the cement kiln can be contacted with each other, and the solid content can be fed to a cement finishing process, which allows cement with low CaO and Ca(OH)2 contents and with stable property such as setting time to be produced.
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公开(公告)号：US20140366499A1
公开(公告)日：2014-12-18
申请号：US14371133
申请日：2012-04-02
申请人： Daisuke Sakaniwa , Junzhu Wang , Hirokazu Shima
发明人： Daisuke Sakaniwa , Junzhu Wang , Hirokazu Shima
IPC分类号： F27D17/00
CPC分类号： F27D17/008 , B01D45/12 , B01D53/68 , B01D2257/2025 , C04B7/60 , F27B7/20 , F27B15/003 , F27D7/02 , F27D17/001 , F27D2017/009
摘要： The present invention provides a chlorine bypass device which can cool exhaust gas quickly by mixing extracted exhaust gas with cooling air at high efficiency, thereby produce fine chloride dust, and increase dust recovery efficiency. In the present invention, a cooling pipe 21 adapted to cause cooling air to flow into an extraction pipe 20 adapted to extract part of exhaust gas from an exhaust gas pipe is formed by an annular revolving portion 22 and an introducing portion 23, the revolving portion 22 includes an inner pipe 24 and outer pipe 25 configured to be cylindrical in shape and adapted to surround an outer wall of the extraction pipe via a gap, the introducing portion 23 is defined by a reduced-diameter pipe 28 joined at a first end to the outer pipe of the revolving portion 22 and joined at a second end to the outer wall of the extraction pipe 20, the second end being reduced in diameter compared to the first end, a cooling air duct 27 from the blower is connected to the revolving portion 22 so as to introduce the cooling air in a circumferential direction of the revolving portion 22, and a flow inlet 29 adapted to cause the cooling air from the introducing portion 23 to flow into the extraction pipe is formed over an entire circumference of the outer wall of the extraction pipe 20.
摘要翻译： 本发明提供一种氯旁路装置，其能够通过将提取的废气与冷却空气以高效率混合而快速地冷却废气，从而产生细小的氯化物粉尘，并且提高灰尘回收效率。 在本发明中，通过环状回转部22和导入部23，使冷却用空气流入排气管排出气体的抽出管20的冷却管21，该旋转部 22包括内管24和外管25，该内管24和外管25被构造成圆柱形并且经由间隙包围抽吸管的外壁，引入部分23由在第一端连接的直径减小的管28限定 旋转部分22的外管并且在第二端处连接到抽吸管20的外壁，第二端与第一端相比直径减小，来自鼓风机的冷却风道27连接到旋转 部分22，以便在旋转部分22的圆周方向上引入冷却空气，并且适于使来自引导部分23的冷却空气流入抽吸管的流入口29是 在提取管20的外壁的整个圆周上。
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公开(公告)号：US20140174324A1
公开(公告)日：2014-06-26
申请号：US14091126
申请日：2013-11-26
发明人： Helmut Leibinger
CPC分类号： C04B7/47 , C04B7/364 , C04B7/365 , C04B7/432 , C04B7/44 , C04B7/475 , F27B7/2025 , F27D17/004 , F27D17/008 , Y02P40/123 , C04B7/60
摘要： To produce cement clinker by baking of raw meal in a kiln, use is conventionally made of a raw meal preheater in which the heat of the flue gas emerging from the kiln is transferred to the raw meal. In order to remove impurities which accumulate in circulation between the kiln and the raw meal preheater, a part of the flue gas is extracted from the kiln, bypassing the raw meal preheater. The heat generated during the baking of cement clinker can be used particularly efficiently if the flue gases extracted and diverted past the raw meal pre-heater are used in a boiler to generate hot steam which can subsequently be expanded in a turbine.
摘要翻译： 为了通过在窑中烘焙生料来生产水泥熟料，通常使用生粕预热器制成，其中从窑中出来的烟气的热量转移到生料中。 为了除去在窑和生料预热器之间循环中积聚的杂质，一部分废气从窑中抽出，绕过生料预热器。 如果在锅炉中使用通过生料预热器提取和转移的烟道气产生热蒸汽，随后可以在涡轮机中膨胀，则可以特别有效地使用在水泥熟料烘烤期间产生的热量。
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公开(公告)号：US20140065028A1
公开(公告)日：2014-03-06
申请号：US13882284
申请日：2011-10-27
申请人： Francois Hue , Philippe Lac
发明人： Francois Hue , Michel Pasquier , Philippe Lac
IPC分类号： C04B7/60
CPC分类号： C04B7/60 , B01D2257/2025 , B01D2258/0233 , C04B7/24 , C04B7/28 , C04B7/364 , C04B7/4446 , C10J3/18 , C10J3/84 , C10J2300/0946 , C10J2300/1238 , C10J2300/16 , C10J2300/1634 , C10K1/003 , C10K1/004 , F23G5/027 , F27B7/2025 , Y02P40/145
摘要： A cement clinker manufacturing plant that includes a plant for producing purified syngas, obtained from solid waste, and process for transferring ash recovered from the ash pan of the gasifier to at least one inlet of the feedstock conversion device, which the plant includes, and/or of the furnace for the purpose of incorporating said ash into the feedstock; and a process for conveying the purified syngas to the main tuyere of the furnace and/or to at least one inlet of the feedstock conversion device.
摘要翻译： 一种水泥熟料制造工厂，其包括用于生产从固体废物获得的纯化合成气的设备，以及用于将从气化器的灰盘回收的灰分转移到所述设备包括的原料转化装置的至少一个入口的工艺和/ 或炉子，用于将所述灰分并入原料中; 以及将纯化的合成气输送到炉子的主风口和/或原料转化装置的至少一个入口的方法。
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公开(公告)号：US20080264872A1
公开(公告)日：2008-10-30
申请号：US12090049
申请日：2006-10-16
申请人： Masayoshi Konishi , Hideho Hayashi , Ikuko Watanabe , Takehiko Itoh , Takayuki Kuroiwa , Taichiro Fujimaki
发明人： Masayoshi Konishi , Hideho Hayashi , Ikuko Watanabe , Takehiko Itoh , Takayuki Kuroiwa , Taichiro Fujimaki
CPC分类号： B01D9/0022 , C01D3/08 , C04B7/38 , C04B7/60 , Y10S210/912
摘要： The present invention provides a method and an apparatus for treating a chlorine-containing waste, which can separate and recover a chlorine component from a chlorine-containing waste, and also can achieve a high chlorine removal thereby obtaining a high purity chlorine compound, and can decrease the amount of water for recovering chlorine. The method for treating a chlorine-containing waste of the present invention comprises a washing/filtrating step of adding water to the chlorine-containing waste, followed by mixing to form a first slurry, separating the first slurry into a solid and a filtrate through filtration, and using the resulting solid as a cement raw material; a filtrate treating step of adding a reducing agent and a pH adjustor to the filtrate to form a sediment containing heavy metal and calcium contained in the filtrate, and separating the sediment through filtration; a crystallization step of concentrating the filtrate, from which the sediment has been removed, through heating and evaporation to form a second slurry in which a chlorine compound contained in the filtrate has been crystallized, separating the second slurry into a solid containing a chlorine compound and a mother liquor, and recovering the solid; and a separated mother liquor treating step of returning a portion of the mother liquor to a cement manufacturing facility.
摘要翻译： 本发明提供一种用于处理含氯废物的方法和装置，其可以从含氯废物中分离和回收氯组分，并且还可以实现高氯去除，从而获得高纯度氯化合物，并且可以 减少回收氯的水量。 本发明的含氯废物的处理方法包括向含氯废液中加水的洗涤/过滤步骤，然后混合形成第一浆料，通过过滤将第一浆料分离成固体和滤液 并将所得固体用作水泥原料; 滤液处理步骤，向滤液中加入还原剂和pH调节剂，以形成滤液中含有的重金属和钙的沉淀物，并通过过滤分离沉淀物; 将通过加热和蒸发从其中除去沉淀物的滤液浓缩的结晶步骤形成第二浆料，其中滤液中含有的氯化合物已经结晶，将第二浆料分离成含有氯化合物的固体， 母液，并回收固体; 以及将一部分母液返回到水泥制造设备的分离的母液处理步骤。
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8.发明申请公开(公告)号：US20080245275A1
公开(公告)日：2008-10-09
申请号：US12066110
申请日：2006-08-25
申请人： Markus Mohr , Christoph Beyer
发明人： Markus Mohr , Christoph Beyer
CPC分类号： C04B7/436 , C04B7/4415 , C04B7/60 , F27B7/2025 , F27B7/2033 , F27B7/205 , F27D17/004 , F27D17/008 , F27D2017/005
摘要： The invention relates to a device and a method for producing clinker from raw cement material. The raw cement material is preheated in a preheater, is precalcined in a calcining apparatus, is completely burned in a sintering furnace, and is final cooled in a cooler Tertiary air of the cooler is fed to the calcining apparatus while eliminated dust is thermally treated in a dust burning reactor with the aid of combustion air and fuel. At least some of the tertiary air is fed to the dust burning reactor as combustion air while the dust that is to be treated and the combustion air penetrate the dust burning reactor in the same direction of flow.
摘要翻译： 本发明涉及一种从原料水泥材料生产熟料的装置和方法。 原料水泥材料在预热器中预热，在煅烧装置中预煅烧，在烧结炉中完全燃烧，并在冷却器中最终冷却。将冷却器的三次空气送入煅烧装置，同时将消除的粉尘热处理 借助燃烧空气和燃料的灰尘燃烧反应堆。 至少一些三次空气作为燃烧空气被供给到灰尘燃烧反应器，而待处理的灰尘和燃烧空气沿相同的流动方向穿过灰尘燃烧反应器。
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9.发明授权
公开(公告)号：US5259876A
公开(公告)日：1993-11-09
申请号：US962041
申请日：1992-10-15
申请人： Torben Enkegaard
发明人： Torben Enkegaard
CPC分类号： F27B7/2033 , C04B7/60
摘要： In a kiln plant for burning clinker from mineral raw materials, such as cement raw materials, and comprising a kiln (1), a precalciner (4), a preheater (6, 7, 8) and a flue gas filter (31), part of the kiln flue gases is diverted from the precalciner and the preheater via a bypass (20-30), the bypassed amount of flue gas being subjected to a preceding quenching in a chamber (21), humidified with water and cooled in a reactor (23), thereby causing the chlorides and alkalis in the bypassed gas to deposit upon dust particles which together with material dust in the gases are precipitated from the latter in a separator (25). The bypassed flue gas thus being almost purified of harmful compounds is then fed to the filter (31) or recirculated to the bypass in such manner that at least part of the precipitated compounds and material dust from the reactor (23) and the separator (25) is returned to the reactor for renewed treatment in same.
摘要翻译： 在用于从诸如水泥原料的矿物原料燃烧熟料的窑炉中，包括窑炉（1），预分解器（4），预热器（6,7,8）和烟气过滤器（31）， 一部分窑尾烟气通过旁路（20-30）从预煅烧器和预热器转移，旁路的烟道气量在室（21）中进行先前淬火，用水加湿并在反应器中冷却 （23），从而使旁路气体中的氯化物和碱沉积在灰尘颗粒上，气体中的粉尘与分离器（25）中的气体中的物质沉淀。 然后将被旁路的烟气几乎被净化的有害化合物进料到过滤器（31）中，或以这样的方式再循环到旁路，使得至少部分沉淀的化合物和来自反应器（23）和分离器（25）的材料粉尘 ）返回反应器进行再次处理。
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10.发明授权System for simultaneously scrubbing cement kiln exhaust gas and producing useful by-products therefrom 失效同时清洗水泥窑尾气并从中产生有用的副产物的系统
公开(公告)号：US4915914A
公开(公告)日：1990-04-10
申请号：US64867
申请日：1987-06-19
申请人： Garrett L. Morrison
发明人： Garrett L. Morrison
摘要： This invention provides a system for simultaneously scrubbing acidic exhaust gases and removing alkali and alkaline earth metal salts from waste dust from a cement plant or the like thereby producing useful products from what would otherwise be wasted. In essence the two wastes are combined in water and the resulting solution and precipitate separated in a tank. The solution is useful both to cool incoming waste gas and as a fertilizer, while the precipitate is suitable as kiln feed stock.
摘要翻译： 本发明提供一种同时洗涤酸性废气并从水泥厂等的废粉中除去碱金属和碱土金属盐的系统，从而由原本被浪费的原料产生有用的产品。 实质上，将两种废物结合在水中，并将所得溶液和沉淀物在罐中分离。 该溶液既可用于冷却进入的废气和作为肥料，同时沉淀物也适用于窑料。
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